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Q. |
When is a complex exponential signal sinusoidal? |
A. | σ =0 and Ω = 0 |
B. | σ < 0 and Ω = 0 |
C. | σ = 0 and Ω ≠ 0 |
D. | σ ≠ 0 and Ω ≠ 0 |
Answer» C. σ = 0 and Ω ≠ 0 | |
Explanation: a signal is sinusoidal when σ = 0 and Ω ≠ 0 |
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